I wanted to mount the Raspberry Pi4 B under the LCD screen but didn't want the PI inside the printer enclosure because of the heat.
I made a hole to run the 10 pin ribbon for the screen as I didn't want to run the ribbon underneath (I made it a little small and had to cut it on mine to have it fit through) I have made the hole bigger on this version.
The Pi is to run Octoprint so I also made a hole to run the ribbon for the PI camera or screen if you wanted to add both.
I mounted the fan with bolts but the holes should be small enough to use screws.
The author remixed this model.